Hose-coupling.



No. 765,109. PATENTED JULY 12, 1904. F. STICKER. HOSE COUPLING.

APPLICATION FILED JAN. 29, 1903. N0 MODEL. 2 5HBETS-SHBET 1.

No. 765,109,. I I PATENTED JULY 12,1904.

1". STICKER. HOSE COUPLING.

APPLICATION FILED JAIIZQ, 1903. N0 MODEL. 2 SHEETBSHEET.2.

T I I i 19' I SH'UQAI loz I raJww Side/8e) Patented July 12,1904.

UNITED STATES PATENT OEEIcE.

FRANCIS STICKER, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO CHARLES A.DRUCKLIEB, OF NEWV YORK, N. Y.

HOSE-COUPLING.

SPECIFICATION forming part of Letters Paten 765,109, dated July 12,1904.

Application filed January 29,1903. Serial No. 141,060. (No mod l.)

To all whom, it may concern,

Be it known that I, FRANoIs STICKER, of New York, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Hose-Couplings; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

The object of this invention is to provide an improved hose-couplinghaving effective means for insuring the hose being properly held anddanger of leakage avoided, the coupling being applicable for securingthe hose directly to a plug or hydrant, as well as for the splicingtogether of hose-sections and for fastening a nozzle to the end of ahose.

The invention will be hereinafter fully set forth, and particularlypointed out in the claims.

In the accompanying drawings, Figure l is a view in side elevation ofthe form used for plug connections. Fig. 2 is a similar view of the formfor nozzle connection. Fig. 3 is a longitudinal sectional view ofFig. 1. Fig. 4: is a similar view of Fig. 2. Fig. 5 shows inlongitudinal section the two forms secured together, as in splicinghose-sections.

I will first describe the coupling as employed for plug or hydrantconnections.

Referring to the drawings, 1 designates a coupling-sleeve having anexterior thread 2 and at one end, extending from the threaded portion, aprojection 3, the outer surface of which is tapered or cone-like, itsinner surface being uniformly parallel with the axis of the cylindricalsleeve. The two surfaces terminate in a sharp edge, causing the bore tocorrespond with and lie in the plane of the bore of the tubing. At itsother end the sleeve is counterbored and formed with a female thread 4.,with which engages a tailpiece 5, exteriorly threaded and having itsouter end formed with a flange 6, the bore of the tailpiece being thesame as that of the sleeve. The tapered projection 3 is designed toextend into the end of a hose 7, which latter is expanded as it and theprojection are telescoped.

8 designates a nut internally threaded at 9 to engage the thread 2 ofsleeve 1, such nut having at itsouter end an inwardly-extended annularshoulder 10. This shoulder is designed to engage a locking or bindingring 12, which encircles the end of the hose and serves to bind thelatter tight against the tapered projection. The ring has a taperedbore, the taper thereof conforming to that of the projection 3, so thatthe hose is bound on the latter with wedge-like action, but withoutinjury to the flexible material. As the nutis screwed home its shoulderengages the outer edge of the ring and forces the latter inwardly overthe end of the hose, and the more the nut is tightened the tighter thejoint, since the ring is free to be moved by the nut until a perfectjointure is secured. The external diameter of ring 12 is slightly lessthan the internal diameter of the nut. The ring is triangular incross-section and of greater width than thickness. It is made of softmetal, preferably brass, permitting of slight expansion. Thus when nut10 engages the ring it is practically working against the width of thering, resulting in the latter being pushed over the tubing and byfrictional engagement moving the tubing well over the taperedprojection; but while the tubing is being forced along the taperedsleeve it is in conforming to the wedge, so to speak, pressing againstthe broad face of the ring-that is, against its thickness which expandsslightly under the pressure. The nut may thus be moved until theexpansion of the ring has caused the latter to fill the space betweenitself and the nut, at the same time conforming to any irregularities inthe surface of the tubing and insuring a perfect joint. If the width ofthe nut were less than that shown or practically the same as thethickness, the expansion could not result, as the ring would offer thesame resistance in eitherdirection and the tightening of the nut wouldeither turn the ring or force it out of shape. In screwing home the nutthe hose is not twisted, as the nut turns around the shoulder formed bythe end of the ring and is thereby prevented from materially contactingwith the hose.

13 designates a coupling-nut loose on tailpiece and having an innerstop-flange 14.

This nut is formed with a female thread for securing the coupling toaplug or hydrant or anything equipped with a male thread. For thepurpose of locking the nut and the tapered sleeve together while thehose is being secured on the latter I form the nut with holes and thesleeve with lugs 16. After the hose is secured the nut is released fromengagement with the lugs and can then be revolved freely on thetailpiece to couple to anything desired. The ring-binding nut 8 and thecoupling-nut 13 are equipped With laterally-projecting lugs 17, by whichthey may be easily and readily revolved.

The male construction (shown in Figs. 2 and 4) differs from theconstruction hcreinbefore described and shown in Figs. 1 and 3 in thatthe coupling-sleeve is elongated and formed with a second male thread 18to accommodate a nozzle or form connection through the coupling-nut withthe female coupling, as shown in Fig. 5. When the parts are so coupledtogether, as in splicing, a packingring 19 is fitted between thetailpiece 5 and the sleeve of the male coupling. (See Fig. 5.)

The advantages of my invention are apparent to those skilled in the art.It will be noted that a perfectly smooth bore is presented at the pointsof jointure of the hose and the couplings and also between the twocouplings, thus avoiding all danger of undue wear by internal friction.The hose-sections do not have to be specially formed, as with externalshoulders, to check the progress of the binding-ring, the latter beingarrested only by the binding of the hose over the tapered memberextended thereinto, the tight fit of the ring upon the hose beinginsured by the provision for expansion. My improvements, as hereindescribed, are applicable for both male and female connections, and thetwo forms may themselves be connected in splicing hose-sections. In allforms the'hose-sections may be readily fastened to the couplings withouttwisting them in the direction of their length.

I claim as my invention 1. In a coupling forflexible tubing, a sleeveexternally threaded at one end and provided at the other end with atapered projection designed to enter the tubing, a nut encircling theend of such tubing and engaging the thread of the sleeve and having aninternal shoulder at its outer end, and an expansible ring of greaterwidth than thickness, encompassing said tubing and having a tapered borecorresponding to said tapered projection, normally of slightly lessexternal diameter than the internal diameter of said nut, by whichlatter it is accommodated, substantially as and for the purpose setforth.

2. In a coupling for flexible tubing, a sleeve externally threaded atone end and provided at the other end with a projection whose outersurface is tapered or cone-like and whose inner surface or bore isuniform, said taper and bore terminating in a sharp edge, saidprojection being designed to enter the tubing, a nut encircling the endof such tubing and engaging the thread of the sleeve and having aninternal shoulder at its outer end, and an expansible ring of greaterwidth than thickness, encompassing said tubing and having a tapered borecorresponding to said tapered projection, normally of slightly lessexternal diameter than the internal diameter of said nut, by whichlatter it is accommodated, substantially as and for the purpose setforth.

3. The herein-described coupling between hose-sections comprising twosleeves, each threaded on its outer surface and having projectionsdesigned to extend into the ends of hosesections, such projectionshaving their outer surfaces tapered or cone-like and their innersurfaces or bores uniform, such tapers and bores terminating in sharpedges, expansible rings encircling the hose ends, such rings havingtapered bores conforming to the tapers of said projections, nuts workingon said sleeves designed to engage said rings, said rings being normallyof slightly less external diameter than the internal diameter of saidnuts, one of said sleeves having a tailpiece extending therefrom, acoupling-nut loose on said tailpiece, and means for temporarilylockingsaid coupling-nut to said latter sleeve, said coupling-nut beinginteriorly threaded to engage the exterior thread of the other sleeve,the bores of said sleeves and tailpiece being uniform with each otherand that of the tub ing, substantially as and for the purpose set forth.

4. A hose-coupling comprising a sleeve having a male thread, a taperedprojection designed to extend into the end of a hose-section, saidsleeve also having a female thread, a tailpiece engaging said femalethread, a ring encompassing that portion of the hose on said taperedprojection, a nut for engaging the male thread of said sleeve andbinding said ring against the hose, a coupling-nut loose on saidtailpiece having an interior thread, and means for locking thecoupling-nut and sleeve together while the hose-section is being securedon said tapered projection, as set forth.

5. A hose-coupling having at one end a tailpiece, a coupling-nut loosethereon having a female thread, lugs projecting laterally from said nut,and lugs extending from the end of the coupling, said nut havingopenings designed to accommodate said latter lugs, as and for thepurpose set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

FRANCIS STICKER. Witnesses:

E. A. PERPALL, GRAFTON L. McGILL.

